Qual: Spelling htdocs/core (#27491)

Highlights:
- initialY in pdf_standard.modules.php was unused
  - remove (otherwise -> initially) (+same in other file)

htdocs/core/class/utils_diff.class.php

@@ -150,7 +150,7 @@ class Diff
 	}
 
 	/**
-	 * Returns the partial diff for the specificed sequences, in reverse order.
+	 * Returns the partial diff for the specified sequences, in reverse order.
 	 * The parameters are:
 	 *
 	 * @param	string	$table     	the table returned by the computeTable function